Ruhmkorff coil

[ room-kawrf ]

noun

, Electricity.

1. induction coil.

Word History and Origins

Origin of Ruhmkorff coil¹

1850–55; named after Heinrich Daniel Ruhmkorff (1803–77), German physicist, its inventor

Example Sentences

It is well to take certain precautions when operating a Ruhmkorff coil with very rapidly alternating currents.

From Project Gutenberg

He was greatly interested in the improvements of the Ruhmkorff Coil made by Mr. E. S. Ritchie; and in this connection published a paper on the "Actinism of the Electric Discharge in Vacuum Tubes."

From Project Gutenberg

With a battery of five Grove cells and a Ruhmkorff coil of medium size, a somewhat short spark, or arc, of about 5 mm. was found to be more favourable than a longer one.

From Project Gutenberg

The course of electrical events attending the operation of a Ruhmkorff coil being extremely complicated, special interest attaches to some experiments conducted by John Trowbridge and T.W.

From Project Gutenberg

There was a table in the left-hand corner; and another small table—the one on which living bones were first photographed—was near the stove, and a Ruhmkorff coil was on the right.

From Project Gutenberg